BIM is a new methodology for building and construction sector stakeholders.
It is based on integrating 3D models of cities and buildings and infrastructures to a collaborative process in order to get all information of all products, materials, and services that are used in a design, project, work and its facility and asset management once it is finished.
How can you talk about smart cities if we have no smart buildings? To integrate this information into Geographic Information Services-GIS with Building Information Modelling-BIM will lead the process to get what we call City Information Modelling-CIM.